immanent
Naturally existing inside something, as part of its nature.
Immanent means existing or operating within something, naturally present throughout it rather than coming from outside. When philosophers describe God as immanent, they mean God exists within the world and all living things, dwelling in creation itself. This contrasts with transcendent, which means existing beyond or above something.
The word appears most often in religious and philosophical discussions. Some religious traditions emphasize God's immanence, believing the divine lives within every person and creature. Other traditions emphasize transcendence, seeing God as separate from creation. Many embrace both ideas together.
You might also encounter immanent in other contexts. A teacher might say that curiosity is immanent in young children, meaning it's naturally present within them rather than something that needs to be installed from outside. Scientists might describe certain properties as immanent to a material, meaning those properties exist as an essential part of what that material is.
The word helps capture an important distinction: Is something built into the nature of a thing itself, or does it come from somewhere else? When qualities or forces are immanent, they're woven into the fabric of whatever you're discussing, not added on from the outside.